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How many GPUs can hook to my current system

Joined
Jan 19, 2017
Messages
280 (0.18/day)
System Name Core p90
Processor I7 9700k
Motherboard ASRock Z390 Phantom Gaming 4
Cooling Ek supremacy evo cpu block/nexxxos ut60 rad 480mm/D5 vario pump 310mm reservoir combo.
Memory Trident gskill 16gb 3000mhz
Video Card(s) Zotac Gaming AMP RTX 2080 ti 11gb
Storage M.2 Intel 660p 1024gb, 4tb 7200 rpm black Western Digital hdd
Display(s) Acer x34p predator 3440x1440p 120hz g-sync ultrawide 21:9monitor
Case Thermaltake Core P90 tempered glass edition
Audio Device(s) On board
Power Supply Evga supernova g3 850w
Mouse Gskillls mx780
Keyboard Corsair k70 lux rgb
Software Windows 10 64bit
I know it's not OPTIMAL but I want to start somewhere.

My mobo is the asrock Z390 phantom gaming 4
My psu is the Thermaltake SP-1200MPCBUS

Can I fit 3x cards that have 2x 8 pin connectors?
In terms of connecting them to mobo, I got 2x 16x pcie lanes, but can I use the 1x (or 4x I don't Remember) connectors on the mobo. If so, what kind of adapter do I need? Preferably one that doesn't catch fire

The cards would be 2x rtx 3070 and one rtx 2080 ti

The other possible scenario is just 2x cards. The 2080 ti and one 3070. What would be the difference between the two scenarios in terms of needed equipment?
 
Joined
Dec 18, 2005
Messages
7,624 (1.35/day)
System Name money pit..
Processor Intel 9900K 4.8 at 1.152 core voltage minus 0.120 offset
Motherboard Asus rog Strix Z370-F Gaming
Cooling Dark Rock TF air cooler.. Stock vga air coolers with case side fans to help cooling..
Memory 32 gb corsair vengeance 3200
Video Card(s) Palit Gaming Pro OC 2080TI
Storage 150 nvme boot drive partition.. 1T Sandisk sata.. 1T Transend sata.. 1T 970 evo nvme m 2..
Display(s) 27" Asus PG279Q ROG Swift 165Hrz Nvidia G-Sync, IPS.. 2560x1440..
Case Gigabyte mid-tower.. cheap and nothing special..
Audio Device(s) onboard sounds with stereo amp..
Power Supply EVGA 850 watt..
Mouse Logitech G700s
Keyboard Logitech K270
Software Win 10 pro..
Benchmark Scores Firestike 29500.. timepsy 14000..
i am running one 3080 (240 watts) and one 3070 (130 watts) in my desktop machine it has an 850 watt psu...

the two cards together draw about 370 watts.. i would guess no more than 450 watts at the wall..

a 2080ti pulls about 155 watts and a 3070 about 130 watts.. together you would be looking at 120 m/sh or close..

a 3070 is better than a 2080 ti.. the 2080ti draws 30 watts or so more power for the same output..

trog

ps.. this is tuned for maximum mining efficiency memory plus 1000 and power at around 60%..
 
Last edited:
Joined
Mar 21, 2021
Messages
89 (1.59/day)
I know it's not OPTIMAL but I want to start somewhere.

My mobo is the asrock Z390 phantom gaming 4
My psu is the Thermaltake SP-1200MPCBUS

Can I fit 3x cards that have 2x 8 pin connectors?
In terms of connecting them to mobo, I got 2x 16x pcie lanes, but can I use the 1x (or 4x I don't Remember) connectors on the mobo. If so, what kind of adapter do I need? Preferably one that doesn't catch fire

The cards would be 2x rtx 3070 and one rtx 2080 ti

The other possible scenario is just 2x cards. The 2080 ti and one 3070. What would be the difference between the two scenarios in terms of needed equipment?
you can put 5 cards on that board if you get the board out of the case :p
you can easily put 2 3070 in the case if it big enough for the bottom one.
your supply isn't the most efficient one but will manage without any issue.
 
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